Heel-shaping machine



Nov. 10l 1925.

W. H. HALL HEEL SHAPING MACHINE v Filed OCT.. 23, 1922 5 Sheets-Shea?. 1

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lNov. 10', 1925- W. H. HALL HEEL SHAPING MACHINE Filed 001'.. 23, 1922 5 Sheets-Sheet 2 QQ QNNNI. @i

NOV. 10,1925. 1,560,782

W. H. HALL HEEL SHAPING MACHINE Filed Oct. 23. 1922- 5 Sheets-Sheet 5 Z58- entf/07*- WMZ/YM.

Nov. 10, 1925 w. H. HALL HEEL SHAPING MACHINE Filemon 2:5,Y `1922 S Sheets-snee; 4'

Nov. 10, 1925 1,560,782

w'. HALL HEEL SHAPING MACHINE Filed 00023. 1922 5 Sheets-Sheet 5 612mm, I .JW/T va@ Patented 2N l0, i 19215.

UNITED-STATES' vPATENT` WALTER H. HALL, or WINcHENnoN, MASSACHUSETTS, assreNon .To GooDsrEEn OFFICE.

MACHINE COMPANY, A CORPORATION or MASSACHUSETTS.

HEEL-SHAPING MACHINE.l

Alipucat'ion ,med october 231922I serial :10.-596,194.-

To all whom it may concern.'v

Be it known that' I, WALTER H. HALL, a

citizen of the United States, residing at 2 Winchendon, inthe countyl of Worcester and State of Massachusetts, have invented a new and useul-Heel-Shaping Machine, ofwhich lprovide a machine for this purposev which the following is a specification. I Y y This' invention lrelates to `a machineparf ticularlydesigned for shaping the top zsuraceor seat of a wood heel. Such heels are made in a great variety' of styles and sizes and their tgpl surfaces are widely varied both as tb angle and contour.

Itis the general object of my ingention to shall be entirely automatic in operation and which shall be readily adaptable to heels of widely dili'erent characteristics.

A more` speciicobject of my invention is to. provide'improved devices for clamping and holding a heel during the shaping operation and 'for' automatically actuating the clamping devices 'in timed relation to the A operation ofthel mechanism-'by whiehthe heel is presented to the cutter.

A further obj ect' of my inventlon'is to pro? vide interchangeable means by which the vertical position of. the heel may be varied controlling this aXial transverse movement larly pointed v out inthe appended claims.

' A preferred form.. of the invention is` as desired during the shaping operation.'

- An important feature of myinventi'on relates to the provision of means for. moving the cutter axially, transverselyof vtheheel, as the heel is passed thereunder and for Sothat any desired Seat contour maybe obtainedz l My inventionl further relates to arrangements and combinations of parts which will be hereinafterA described. and more particu? shown inthe. drawings 'in which i lfis a plan view of my improved mai. and 3 arelside elevatirms,l looking Figs. 2

* .respectively inthe directions ofthe arrows Figs. "4 and "5 arel rear; and 'front 'elevationsofthe machine, looking -respectively in o thedirections of Fig. 7 is a detail elevation of thev heelrest er Supports' I Fig. 83' is an elevation of the actuating means for the heel clamping levers; Fig. l9 lis a side elevation of certain actuating parts;

Fig. l0 is a plan view^ of certain parts', llpoking inthe direction of the arrows lO'in ig-5s U Fig. 11 is a detail elevation of a modified `cam plate to be described; i

Fig. 12 is aplan view 'of a modified a'rrangement of the actuating mechanism; v

Fig. 13 is aplan view of a camto be used in the modified structure; vand i Fig. 14 isa development of the'cam's'urface thereof.

Referring to the drawings, I have'shown lrelatively lowspeed. A cutter 15 (Fig. 1)

is mounted on a spindle or cutterI shaft- 1 6 rotatable in bearings 17 on the frame 10.

The sha-ft 16 is provided with a pulley 18 I whichis driven 4by abelt 19 from a large drum orpulley `20 (Fig. 3) on the shaft 12.

A guide and tighten'er pulley 21 is-mounted on a bell crank 22pivoted)at 23 on the frame 10. A threaded nut 24 is pivoted toi the upper arm of the bell-crank 2 2 and" is engaged. by anA adjusting screw 2 5. rotatable in a bearing 26 pivoted at 27 to the frame 10.

l The'screw `25 is provided with a handwheel'v 28 at the -front of the machine by which the tension of the belt 19 may be adjusted as desired.

maintained 'by a clamplng screw 37. i

The cutter spindle or shaft 16 aziiallyV Y movable in its bearings 17 ,andis provided l9 5 Atv its 'rear end the lever 32 supportsav i cam roll 38 positionedto engage a side cam 39 (Fig. 1) mounted on a cam shaft 40.

The shaft 4() is mounted in bearings 41 on the vframe 10 and may be connected by a vclutch through a gear 42, pinion 43 Fig. 4), intermediate shaft 44, pulley 45 an belt-46 pivotally connected to the arm 49 and havto a small driving pulley 47 on the main shaft 12.

A tightener pulley 48 (Fig. 2) is 'mounted on an arm 49 pivoted at 50 to the frame and is'controlled by a handle or link 51 ing ahandle 52 at its front end. Thelink 51 is provided with teeth 53 engaging a lock plate 54 by which the tightener pulley 48 may be held in any desired position:

The gear 42 may thus be continuously rotated at relatively slow speed, the gear being loose on the cam shaft and being y connected thereto by clutch devices to be now described. Clutch teeth 55 (Fig. 4) are formed on vthe face of the gear 42 and a stud or plunger 56 is mounted in a clutch casing 57 xed on the shaft 40'the plunger being yieldingly advanced into the path of the` ingly elevated by a spring 63. A cord 64 is connected to the lower end of the rod 62 and is directed by a guide pulley 65 (Fig. 2) to a foot lever 66 mounted at the front of the machine.'

As the wedge blockv 6l is normally inl raised position, the stud or plunger 56 Iis normally Withdrawn and the shaft 40 is normally at rest. When the foot lever66 is depressed, however., the wedge block- 61 is withdrawn and the plunger 56 is released for engagement by the clutchl teeth orpprojections 55 onl-the gear 42. If the lever 66 is then immediately released, the shaft 40 l will make' a single revolution and the plunger 56 will then be again withdrawn to ydisconnect the shaft fromthe gear/42. At each such revolution of the shaft 40, ,the cam 39 and lever 32 act to givethe cutter shaft 16 a desired axial movement .transversely to the path of movement of the heel which is being formed.

A' spring 32a (Fig. 1) is connected a't one end'to a bearing 17 of the shaft 16 and at the opposite end to the forked lever 32. This spring is relatively heavy 'and moves the shaft 16 yieldingly in one direction, holding the cam roll 38 firmly'against th cam 39. L

.The heel clamping devices are vmounted upon a supporting plate 70 (Fig. 2) pivoted at 71 between arms 72 (Figs. 1 and 2) on a slide or carriage 73 mounted on fixed `guide-ways 74. lA connecting rod 75' (Fig. 2) is pivoted at one end on a crank pin 76 'on a disc 77 xed on the shaft 40 and the other end-of the 'rod is pivoted at 78- to a plate 79'adjustably mountedon the slide or' carriage 73. The hand screw 80 provides for adjustment of the plate 79 and the adjustment is maintained by 'a clamping,-

screw 81. The slide 73 is th'us reciprocated once for each revolution of the cam shaft 40 and the heel clamping and supporting devices are simultaneously moved back and forth under the cutter 15.

A heel rest or stand 82 (Fig. 7) is pivoted at 83 (Fig. 6) to the supporting plate 70 and is held in desired angular adjustmenty 4therein by a pin or stud 84 which may be placed in any one of a series of holes 85 in a depending portion 86 of the stand 82. A stop 87 is adjustably secured to the top of the stand 82 and serves to position the heel H longitudinally, in the heel supporting l structure.

Heel clamping levers 88 are pivoted at 89 tothe support 70 and are provided withv removable heel clamping jaws 90 at their forward ends. These jaws 90 areidesigned to be removed and replaced to adapt the machine for different shapes and sizes of heels. connected by a spring 91 by which the jaws are yieldingly separated to release the heel, as shown in Fi 1. l

A short shat 92 (Fig. 8) 'is rotatably mounted lin a vertical position in the .slide or carriage 73 and is provided at its upper end with a disc 93 supporting a pair f actuating rolls 94.l These rolls engage cam sur- The rear ends of the levers 88 are faces upon the-adjacent inner edges of the are released and the jaws are opened, but.

iol

when the rolls are moved to the position shown in Fig. 6 the jaws are forced inward to firmly clamp the heel H.

For thus actuatingthe shaft 92 and the rolls 94, the shaft 92 is provided with an arm 95 at its lower end having a roll 96 positioned in an elongated slot 97 (Fig. 10) in a lever 98 pivoted at 99 (Fig, 2) to the frame 10. The f ree end of the lever 98 is provided with a pivoted block 100 (Fig. 5) through which extends a rod or link101. The block 100 is yieldingly pressed against a collar102 on the rod 101 by a spring 103 disposed between the block 100 and a collar 104. The rod 10l'is pivotally connected'to one arm of a bell crank mounted" in af bracket 106 (Fig. 3) upon the frame 10. The lower arm-of the bell crank is connect- A cam roll (Fig. 9)'on the lever 108 1s positioned for engagement by a cam 111 Yon the cam shaft 40. A spring 112 (Fig. 3) is connected at one end to the link 107 and at the other end to the frame 10 and acts related that when thecam roll 110 enters to hold the cam roll 110 in yielding engage? j ment with the cam 111. The parts are so- I therecess 113.(Fig.f9) in the lcam 111, the

. ,in the revolution of the cam shaft 40 at 4-Arvhich the clutch is disconnected bythe front end of .the

action of the wedge block 61. A

.As previously described, he rear end of the heel supporting plate 70 is pivotally mounted upon the slide or carriage 73. The1 plate isprovided with. a' depending projection 115 (Fig. 2) having a roll or stud 116 positioned in the slot 117 of a cam plate 118 adapted to be bolted to an adjustable support 119.

Ample provision is made for the 'adjustment of the cam plate 118 vertically, horizontally and angularly. The support 119 is pivoted at 120 n a plate 121v and is provided with aseg'mentall slot 122 -through which a clamping bolt' 123 extends, this construction permitting angular adjustment of the support 119 on the plate 121. The

plate 121 is mounted on a second plate or slide 124 and may be vertically adjustedl thereon by ahand screw 125,'the adjustment being maintained by a clamping screw 126.v

The slide 124 may also be horizontally acljusted .byia handl screw 127. v

With this construction, the cam plate 118 may be adjusted angularly and' may bel raised or lowered or may be moved to the right or left, thus varying the` verticalv movement ofthe heel supporting plate 70 as thecarriage 73 is reciprocated. Furthermore, the cam" plates 118 ma be readilyremoved and replaced by. an lnterchangeable cam plate 118" (Fig. 11) having a slot 117a of any desired contourag A'spring 128 (Fig. 2)` draws the plate 70 yieldingly downward and holds the roll 11G/continuously against the lower sidejof the slot 117.

Having described the details of construction of my improved heel shaping machine, 1 will now briefly .describe the operation thereof :-v

The machineis designed for shaping the upper surface or seat of a wood heel, the side surfaces'of which have,been('already finished. Assuming that the cam slia-ft 40 isat rest with theparts positioned as 'shown in Fig. 1, a heel H is inserted between the clamping jaws 90 and against the stop 87 (Fig. 7). The foot lever 66 is fthen momentarily depressed, engaging the clutch. and permitting the camshaft 40 to make one revolution. As the shaft starts torevolve, the cam roll on the lever 108 (Fig. 9) is immediately forced outward, acting through its described connections to rotate the shaft 92 and force the jaws 90 inward Ato clamping position. At the same time the c onnecting rod starts the slide or carriage 73 forward under the cutter 15. iA

.or seat of the heel is 'determined by the vertical movement of the heel, as controlled by the cam plate 118, and bythe transverse movement of thev cutter, as controlled by the cam 39. ,By a careful design ofy these cams and byv the selection of a. suitable cutter,

any desired contour of heel seat may be l produced. Asthe revolution of the shaft 40 is completed, the yslide or carriage 73.is

returned to its forward position and the cam roll 110 again enters ythe recess 113, 1in' the cam 111, releasing the jaws sothat the finished heel may be removed and another blank may be substituted therefor.

It is sometimes desirable to give' the clamping slide or carriage 73 two completereciprocations under the cutter 15,- at thel 85' same time lcausing the cutter ,to assume' intermediate`axial positions in which it will remove any lines or ridgs over-lapping cuts. For t the construction shown in Fig. 12 in which a crank shaft 130 is mounted 'at the rear of the cam shaft 131 4and vis driven therefrom" by, a link 1,35 to the carriage 73`asl in the previous construction, and thus gi'ves the caused by its s purpose I use by gears 132 and 133 at twice the speed of. "l the cam shaft. A crank pin-.134 is connected esv -carriage-two-.reciprocationsfor each revolu- V. tion of the cam shaft"131. 'The speed ofl the cam shaft is 'preferably reduced, as `by changing the ratio between the gear 136v on the cam shaft1 and its driving pinion, sothat the actual speed of the crank. pin 134- is substantially thesame as in the form shown in Fig.' 4, thus leaving the rate ofvtravel of the `carriage 73 unchanged, The .cam for moving the cutter shaft may desirably be of the built-up construction shown in Figs.

13 and 14, comprising a cam body 137'to the vperiphery of which onel or more ca m plates ,138 are adjustably secured by bolts 139. These plates may be made of such' shapes as to give any desired series of axial movementsto'lthe cutter 15. With the lates as shown in Fig; 14, the cutter will ollow the curved outline of the heel along one side, will then-return in Aa substantially straight central path tov the'starting point, will then follow the opposite curved outline 'of the heel and will again return along the center,

thus removing anyv ridges caused by the,

'overlapping of they curved' side cuts. Any other desired movement may be obtained by adjusting or redesigning the plates 138.

My improved machine is particularly useful on account of its adaptabilityto operating on heels of a great variety` of shapes, sizes and contours, 'the' necessary adjustments being performed. Y

extremely .simple and easily 4t i ,Having this' described my inventan, a

will be evident `that changes andinodica movement of said clamping device and heel.

2. A heel seat shaping machine comprising a rotary cutter, a heel clamping device, means to rot-ate Said shaft, automatic means to move said device along a predetermined path, ,and means to^ automatically reciprocate said shaft transversely to said path and in definite timed, relation to the movement ofl said clamping. device.

3. In a heel seat shaping machine, a ro- :tary cutter, a heel 'clamping device, means nto actuate said device to clampa heel, means to move said device along a predetermined path adjacent said cutter, and means to move sald cutter transversely to the path of .movement of said device, said three means being operable in definite timed relation to each other.

4. In a heel lseat shaping machine, a cutter, a cutter shaft, a heel clamping device,

`a cam shaft, a manually controlled clutch by which ysaid vshaft may be Vcaused to make ya single revolution, means on saldjcam shaft to reciprocate said clamplng devlce, and

lcams on said `shaft effective to close and open 4said clamping device, and to reciprocate said cutter shaft axially at each. revolution of said cam shaft. y

5. In a heel seat shaping machine, a guide-Way, a slide mounted thereon, a heel clamping device pivoted on said slide,mea.ns

to reciprocate sald slide, and meansto'rock said device on said slideas said'shde 1s reciprocated to thereby automatically vary both the elevation of the heel being shaped-.

and the angular position y'of the heel in rei lation to the plane of movement of the slide.

6. In a heel seat shaping machine, a

guide-way, a slide mounted thereon, a heel clamping device pivoted on said slide, means to reciprocate said slide, a stationary ca m plate, and a camvl roll "associated wlth said device and engaging said camvplate to rock said device as said slide is reciprocated, said cam plate being both angularly and verticallyadjustable `to vary the vertical movement of said device.

7. In a heel seat shaping machine, a heel clamping device including a pair of clamping levers, a spring to open said levers, a` vertical shaft having a pair of lever-engag-` ing rolls at its upper end and an arm at its lower end, a rolll on said arm, a lever pivoted to said machine and' having an elongated slot for said roll, and means to move said lever laterally to close said clamping Vlevers-and to hold vthem in clojed position. .l

8. In a heel seat shapmg machine, a heel clamping` device lncluding a pan.' of clamping levers, a spring 4to open Said'levers, a

vertical shaft having a pair of lever-engaglng rolls atits upper end and-an arm at its lower end, a roll on said arm,a lever pivoted to said machine and having an elongated.

pivoted to said plate, andmeans to hold said rest in different selected vertical positions relative to said supporting plate and clamping jaws. I

10. In a heel seat ,shaping machine, a.

heel clamping device including a heel supporting plate, clamping jaws pivoted to said plate, a heel rest pivoted to said plate, means to `hold said`rst in selected verticalvrelation to said plate, means to reciprocate said clampingdevice, and means to vary the vertical position Yof said supporting plate as said device is reciprocated.

f 11. A heel seat shaping machine comprising a rotary cutter, a heel clamping device, means to reciprocate saiddevice, means to reciprocate said cutter transversely/'to the path of movement of saidv device and in timed relation to such movement, and means to stop the machine fafter ytwo complete reciprocations of said clamping device.

12. lAvheel seat shaping machine comprising a rotary cutter, a heel clamping device, means to give said device a double complete reciprocation, mechanism including a cam `for giving lsaid cutter a predetermined axial movement in fixed relation to the double movement of said clamping device, said cam having detachable cam plates secured thereto by which said axial movementis determined and means to stop the machine after two complete reciprocations Vot' said clamping device.

In testimony whereof I have hereunto aflixed my signature. ,y

, WALTER H. HALL. 

